Process for manufacturing rough-faced brick.



I. U. NICHOLSON.

PROCESS FOR MANUFACTURING ROUGH FACED BRICK.

APPLICATION FILED DEC. l, ISIS.

Patented Nov. 14, 1916.

2 SHEETS-SHEET l.

INVETOR ATTORNEY -1. U. NICHOLSON.

PROCESS FORl MANUFACTURING ROUGH FACED BRICK.

APPLICATION FILED DEC. I. 1915.

1 ,204,477. Patented Nov. 14, 1916.

2 SHEETS-SHEET 2.

INVENTOR ATTORNEY.

JOHN U. NICHOLSON, OF STEUBNYILLE, OHIO.l

PROCESS FOR MANUFACTURING ROUGH-FACED BRICK.

specification of Letters Patent.

Patented Nov'. 14, 1916.

Application led December 1, 1915. Serial No. 64,390. l

To all whom t may concern Be it known that I, JOHN U. NICHOLSON, a citizen of the United Statesl of America, and resident of Steubenville, county of J efferson and State of Ohio, have invented certain new and useful Improvements in Processes for ManufacturingRough-Faced Brick, of which the following is a specification.

This invention relates to a process of manufacturing rough-faced brick, and it has for its primary object to provide a process whereby a brick having an extremely rough face may be produced.

A further object is to provide a method whereby substantially uniform rough faces, or both faces and ends, are automatically produced on bricks during the process of manufacture.

With these and other objects in View, all of which'will hereinafter be made apparent, the invention resides in the process which will hereinafterbe fully described, reference being had to the accompanying drawings, forming a part 4of this specification, in

' which- Figure 1 is a side elevation of an appara- 2 is a front elevation of the rollers; Fig. 3 is i a perspective view of a brick formed in accordance with my invention; Fig. 4 is a Similar view of the scaritier; Fig. 5 is a front elevation of the mouthpiece of the die; and Fig. 6 is a section on -the line 6-6, Fig. 5.

Referring to said drawings, in which like designating characters distinguish like parts throughout the several views, 1 indicate-s the usual die through which the column 2 of clay in a green, or plastic, condition is forced in the usual manner, to be thereafter cut into brick of proper size. At the exit end of the die is a rectangular mouthpiece 3 through which the column 2 is extruded. Formed interiorly of said mouthpiece .3 on the upper wall thereof is a plurality of suitably spaced `teeth 4 by means of which rectangular furrows 5 are formed in the top face of the column 2. Said teeth are made of any suitable depth and are preferably spaced apart a distance substantially equal to twice their width: at their outer ends. Further, said teethA taper inwardly, or rearwardly, from their outer ends to sharp points, as shown in Fig. 6,' being thus adapted to produce the grooves or furrows 5 by a gradual Spreading and compressing of the material and without tearing clay from the column. After leaving the mouthpiece 3 the column passes through a Scarifier wherein its top face and side walls are subjected to the scoring action of a plurality of pointed instruments or spikes 6. Said spikes are carried by a suitable frame 7 which is disposed in straddling relation to the path of travel of the column.

Said spikes are preferably of triangular form in cross section and some of those projected through the top of the frame 7 are so disposed that one thereof engages the column at the bottom of each of the previously formed furrows 5, being of relatively less width than said furrows and designed to plow up vthe clay at the bottoms of the latter. Others of the spikes are disposed to plow grooves, as 8, in the face of the column intermediate adjacen-t'furrows 5, said grooves being of relatively less depth than said furrows. In so grooving the intermediate spaces, small masses of clay are broken from said spaces and turned over into said furrows, partially refilling the latter. The sides of the column are also scored by the spikes which are projected through the ends of the frame.

From the scarifying device the column passes between four rolls whereby the ruffled-up material thereof is rolled or pressed down to the level of the original smooth surface. Further, designs carried by the surfaces of the rolls are impressed in the column to additionally roughen the latter.. Said designs may 'be of any suitable character or pattern, as the rock-face design shown on the top roll 9 and end rolls 10, such rough roll surfaces being designed not only to form cross or intersecting designs or grooves 15, but also to depress material between adjacent grooves and furrows in irregular masses into Such grooves and furrows for increasing the roughness and irregularity of the top and side surfaces of the column.

The four rolls are disposed in such relation as to form an intermediate rectangular passage 11 having the precise dimensions of the column which issues from the mouthpiece of the die. Said rolls are preferably rendered slightly yielding by the provision of bearings, as 12, supported by springs, as 13. Further, the ends of adjacent rolls are preferably beveled, as shown at 14, to afford miter joints. After issuing from the rolls the column passes to the usual olf-bearing table (not shown) whereon it is carried to the cutting point to be cut up into bricks.

-It will be understood that the apparatus shown and described is merely illustrative of apparatus which may be employed in carrying out the process dened in the appended claims. j l

What is claimed is- 1. The process of forming rough-faced brick, which consists in subjecting the top surface of a column of plastic clay as it issues from the die mouthpiece to the action of furrowing teeth, whereby a yseries of clean-cut symmetrical furrows is initially formed in said surface, then scarifying said surface ,to produce relatively shallowr grooves between adjacent furrows' to break up the symmetry of said surface, then sublectingidpsllrface to the' pressure of a roll for depressing elevated lfragments to the original surface level, and finally dividing said column into bricks.

2. The process of forming rough-faced brick, which consists in subjecting the top surface of a column of plastic clay as it' issues from the die mouthpiece to the action of furrowing teeth, whereby a series of clean-cut symmetrical furrows is initially formed in said surface, then subjecting said surface to the action of scarifying members whereby relatively shallow grooves are formed between adjacent furrows, then pressing upraised fragments to the original surface level, and finally cutting said column into bricks.

3. The process of forming rough-faced. brick, which consists in subjecting the top surface of a column of plastic clay asit issues from the die mouthpiece to the action of furrowing teeth, whereby a series of clean-cut symmetrical furrows is initially formed in said surface, then subjecting said surface to the action of scarifying members whereby relatively shallow grooves are plowed between adjacent furrows overturning material into the latter, then rolling upraised fragments of material to the original surface level, and finally cutting the colplowed in said surface between adjacent furrows overturning material into the latter, then rolling upraised' fragments of material to the original surface level and simultaneously forming groove and furrow intersecting designs in said surface, and finallyv cutting the column into bricks.

5. The process of forming rough-faced recaer? brick, which consists in initially forming a series of clean-cut s mmetrical regular furrows in the top sur ace of the moving plastic clay column from which the bricks are to'be cut, then scarifying said surface between adjacent furrows to displace material,

. clay column from which the bricks are to be cut, then subjecting said column to the action of spikes which score said surface to produce relatively shallow grooves between adjacent furrows and which act to effect a partial and irregular refilling of said furrows, then rolling said surface to depress upraised portions to the original surface level, and finally cutting said column into bricks.

7. The process of 4forming rough-faced brick, which consists in initially forming a series of clean-cut symmetrical regular furrows in thev top surface of the moving plastic clay column from which the bricks are to be cut, then scarifying said surface to produce ,relatively shallow grooves between adjacent furrows, thenrolling upraised fragments to the original surface level and to simultaneously form cross furrows in said surface, and finally cutting said column into bricks.

8. rlhe process of forming rough-faced brick, which consists'in initially forming a series of clean cut symmetrical regular furrows in the top surface of the moving plastic cla)7 column from which the bricks are to be cut, then subjecting said column to the action of spikes which score said'surfae between adjacent furrows and act to e'ect a partial and irregular refilling of said furrows, then rolling said' surface to depress upraised portions to the original surface level and to simultaneously vform groove and furrow intersecting grooves in said surface, and finally dividing said column into bricks.

9. The process of forming rough-faced brick, ewhich consists in initially forming a series of clean-cut symmetrical regular furrows in the top surface of the moving plastic clay column from'which `the bricks are to be cut, then scarifying said surface to produce relatively shallow grooves between adj acent furrows whereby material is overturned into said furrows and simultaneously forming grooves in the side surfacesof the column, then rolling the top and side surfaces to press raised fragments of materialto the original levels of said surfaces, and finally cutting said column into bricks..

10. Thezprocess of forming rough-faced brick, which consists in initially forming a series of clean-cut symmetrical regular furrows in the top surface of the m'oving plastic clay column from which the bricks are to be cut, then subjecting said column to the action of spikes which produce scores at the bottoms of said furrows, and also subjecting said column to the action of other spikes which score said top surface between adjacent furrows, then 4depressing upraised material to restore the original surface level, and

4finally cutting the column into bricks.

11. The process of forming rough-faced brick, which consists in initially forming a series of clean-cut symmetrical regular furrows in the top surface of the moving plastic clay column from which the bricks are to be cut, then scarifying said surface between adjacent furrowsto overturn material into said furrows and simultaneously producing scores in the side surfaces of the column and also at the bottoms of said furrows, then rolling the scarified surfaces to restore the original surface levels, and finally cutting said column into bricks.

l2. The process of forming rough-faced brick, which consists in initially forming a series of clean-cut symmetrical regular furrows in the top surface of the moving plastic clay column from which the bricks are to be cut, then scarifying said surface between adjacent furrows to overturn material into said furrows and simultaneously producing scores in the side surfaces of the column and also at the bottoms of said furrows, then rolling the scariied surfaces to restore the original surface levels and to simultaneously form designs on said surfaces, and finally cutting said column into bricks.

In testimony whereof, I aiiix myi signature in presence of two vsubscribing witnesses.

JOHN U. NICHOLSON. Witnesses:

D. M. GRUBER, H. E. DUNLAP. 

